Risk Factors Associated with Malaria Infection Identified through Reactive Case Detection in Zanzibar, 2012-2019

Abstract BackgroundOver the past two decades, Zanzibar substantially reduced malaria burden. As malaria decreases, sustainable improvements in prevention and control interventions may increasingly depend on accurate knowledge of malaria risk factors to further target interventions. This study aimed to investigate the risk factors associated with malaria infection in Zanzibar. MethodsWe analyzed surveillance data from Zanzibar’s Malaria Case Notification system collected between August 2012 and December 2019. This system collects data from all malaria cases passively detected and reported by public and private health facilities, from household-based follow-up and reactive case detection activities linked to those primary cases. All members of households of the passively detected malaria cases were screened for malaria using a malaria rapid diagnostic test (mRDT); individuals with a positive mRDT result were treated with artemisinin-based combination therapy. Univariate and multivariate logistic regression analyses were done to investigate the association between mRDT positivity among the household members and explanatory factors (i.e., age, sex, history of fever, history of travel, rainfall, long-lasting insecticidal net [LLIN] density, LLIN use, household indoor residual spraying [IRS], and household location) with adjustment for seasonality ResultsThe findings show that younger age (p-value for trend<0.001), history of fever in the last two weeks (odds ratio [OR]=32.0; 95% CI: 29.1-35.3), history of travel outside Zanzibar in the last 30 days (OR=2.3; 95% CI: 2.1-2.6) and living in Unguja (OR=1.2; 95% CI: 1.1-1.3) were independently associated with increased odds of mRDT positivity. In contrast, male sex (OR=0.8; 95% CI: 0.7-0.9), having higher household LLIN density (p-value for trend<0.001), sleeping under an LLIN the previous night (OR=0.8; 95% CI: 0.7-0.9), and living in a household that received IRS in the last 12 months (OR=0.9; 95% CI: 0.8-0.9) were independently associated with reduced odds of mRDT positivity. A significant effect modification of combining IRS and LLIN was also noted (OR=0.7; 95% CI:0.6-0.8).ConclusionsThe findings suggest that vector control remains an important malaria prevention intervention: they underscore the need to maintain universal access to LLINs, the persistent promotion of LLIN use, and application of IRS. Additionally, enhanced behavioral change and preventive strategies targeting children aged 5-14 years and travelers are needed.

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Risk factors associated with malaria infection identified through reactive case detection in Zanzibar, 2012–2019

Malaria Journal ◽

10.1186/s12936-021-04025-1 ◽

2021 ◽

Vol 20 (1) ◽

Author(s):

Humphrey R. Mkali ◽

Erik J. Reaves ◽

Shabbir M. Lalji ◽

Abdul-Wahid Al-mafazy ◽

Joseph J. Joseph ◽

...

Keyword(s):

Risk Factors ◽

Malaria Infection ◽

Universal Access ◽

Behavioural Change ◽

P Value ◽

Case Detection ◽

Reactive Case Detection ◽

Factors Associated ◽

Household Members ◽

Index Cases

Abstract Background Over the past two decades, Zanzibar substantially reduced malaria burden. As malaria decreases, sustainable improvements in control interventions may increasingly depend on accurate knowledge of malaria risk factors to further target interventions. This study aimed to investigate the risk factors associated with malaria infection in Zanzibar. Methods Surveillance data from Zanzibar’s Malaria Case Notification system from August 2012 and December 2019 were analyzed. This system collects data on malaria cases passively detected and reported by all health facilities (index cases), and household-based reactive case detection (RCD) activities linked to those primary cases. All members of households of the index cases were screened for malaria using a malaria rapid diagnostic test (RDT). Individuals with a positive RDT were treated with artemisinin-based combination therapy. Univariate and multivariate logistic regression analyses were done to investigate the association between RDT positivity among the household members and explanatory factors with adjustment for seasonality and clustering at Shehia level. Results A total of 30,647 cases were reported of whom household RCD was completed for 21,443 (63%) index case households and 85,318 household members tested for malaria. The findings show that younger age (p-value for trend [Ptrend] < 0.001), history of fever in the last 2 weeks (odds ratio [OR] = 35.7; 95% CI 32.3–39.5), travel outside Zanzibar in the last 30 days (OR = 2.5; 95% CI 2.3–2.8) and living in Unguja (OR = 1.2; 95% CI 1.0–1.5) were independently associated with increased odds of RDT positivity. In contrast, male gender (OR=0.8; 95% CI 0.7–0.9), sleeping under an LLIN the previous night (OR = 0.9; 95% CI 0.7–0.9), having higher household net access (Ptrend < 0.001), and living in a household that received IRS in the last 12 months (OR = 0.8; 95% CI 0.7–0.9) were independently associated with reduced odds of RDT positivity. A significant effect modification of combining IRS and LLIN was also noted (OR = 0.7; 95% CI 0.6–0.8). Conclusions The findings suggest that vector control remains an important malaria prevention intervention: they underscore the need to maintain universal access to LLINs, the persistent promotion of LLIN use, and application of IRS. Additionally, enhanced behavioural change and preventive strategies targeting children aged 5–14 years and travellers are needed.

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Stroke Risk Factors, Subtypes and Outcome in Elderly Thai Patients

10.21203/rs.3.rs-140400/v1 ◽

2021 ◽

Author(s):

Chatpol Samuthpongtorn ◽

Tul Jereerat ◽

Nijasri Suwanwela

Keyword(s):

Risk Factors ◽

Atrial Fibrillation ◽

Ischemic Stroke ◽

The Elderly ◽

P Value ◽

Younger Patients ◽

Factors Associated ◽

Stroke Risk Factors ◽

History Of ◽

Ischemic Attack

Abstract Background: Nowadays, the number of elderly has steadily increased annually. Elderly patients with ischemic stroke often have worse outcomes than younger patients. However, there has not been a study of ischemic stroke in the elderly in Thailand. A better knowledge of the risk factors, subtypes, and outcomes of strokes in the elderly may have significant practical implications for the aged society in the future. The objective of the study was to assess the risk factor, stroke subtypes, and outcome of stroke in the elderly compared to the younger patients.Method: All patients presented with acute ischemic stroke and transient ischemic attack (TIA) aged over 45 years who were admitted in the Stroke unit between November 1st, 2016 and December 31st, 2017 were retrospectively studied.Result: 542 patients were included. The average age was 68.78±12.03, 44.8% of them were male. 186 (34.3%) patients were 75 or older. Cardioembolism was found to be the most common cause of ischemic stroke in 156 patients (28.8%). Patients who were 75 or older had significantly worse outcomes in all categories including NIHSS at discharge, modified Rankin scale, length of stay and the number of deaths) compared to the younger group. Atrial fibrillation was the risk factors associated with older age with OR 3.861 (p value<0.001). Aged 75 years or older, atrial fibrillation, more NIHSS score on admission and history of the previous stroke were the risk factors associated with a patient's death.Conclusion: The elderly who are 75 years or older accounts for more than one-third of ischemic stroke in our study. Stroke in the elderly correlates with higher mortality and poorer outcome. Cardioembolism related to atrial fibrillation is the major cause of stroke in this population.

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FACTORS ASSOCIATED WITH THE PREVALENCE OF ARTERIAL HYPERTENSION IN THE GENERAL WORKING AGE POPULATION

Complex Issues of Cardiovascular Diseases ◽

10.17802/2306-1278-2018-7-4-6-14 ◽

2018 ◽

Vol 7 (4) ◽

pp. 6-14 ◽

Cited By ~ 2

Author(s):

V. S. Kaveshnikov ◽

V. N. Serebryakova ◽

I. A. Trubacheva

Keyword(s):

Risk Factors ◽

Family History ◽

Arterial Hypertension ◽

Urban Population ◽

Screening Program ◽

P Value ◽

Factors Associated ◽

Salt Consumption ◽

Working Age ◽

History Of

Aim. To determine the factors associated with the prevalence of arterial hypertension (AH) in the unorganized urban population of working age.Methods. Random sample drawn from adult urban population aged 25–64 years (n = 1600, 59%-women) was examined in the standardized cardiologic screening program. The following associative factors were analyzed: age, family status, level of education and income; excessive salt consumption (ESC), low physical activity, alcohol consumption; family history of AH; anxiety/depression (HADS); smoking, body mass index (BMI), heart rate (HR). Logistic regression was used to analyze the relationships. A p value of <5% was considered statistically signifcant.Results. After adjustment for age, the odds for AH were higher in men (OR = 1,57, p<0,001) with the maximum gender effect found in 35–44 years (OR = 3,66, p<0,001). In the singlefactor analysis, age, BMI, family history of AH, HR and ESC were the most signifcant risk factors for AH in men. Secondary education and clinical anxiety in addition with the above-mentioned ones increased odds for AH in women. In the multivariable model, age, BMI, family history of AH and HR were associated with high AH prevalence in men. In women, these factors included age, BMI, family history of AH, HR, ESC, middle education and clinical anxiety. Out of the other modifable risk factors, BMI contributed greatly to the variability in AH prevalence in the examined population.Conclusion. The obtained fndings provides novel data on the comparative signifcance of the studied risk factors. The efforts to prevent excessive weight gain and dietary salt consumption seem promising to reduce AH prevalence in the population. Further studies focusing on the role of genetic, behavioral, and environmental factors for AH development will ensure the establishment of more effective, accurate and personalized prevention approaches in the future.

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FAKTOR RISIKO YANG BERHUBUNGAN DENGAN KEJADIAN PREEKLAMPSIA PADA IBU HAMIL (STUDI KASUS DI RSUD KABUPATEN BREBES TAHUN 2014)

Unnes Journal of Public Health ◽

10.15294/ujph.v5i2.10106 ◽

2016 ◽

Vol 5 (2) ◽

pp. 90 ◽

Cited By ~ 1

Author(s):

Nuning Saraswati ◽

Mardiana Mardiana

Keyword(s):

Diabetes Mellitus ◽

Risk Factors ◽

Random Sampling ◽

Simple Random Sampling ◽

Case Control ◽

Control Group ◽

P Value ◽

Chi Square ◽

Factors Associated ◽

History Of

Abstrak Kejadian preeklampsia di Kabupaten Brebes meningkat dari tahun ke tahun. Pada tahun 2011 sebanyak 215 kasus (1.547 persalinan), tahun 2012 sebanyak 170 kasus (1.957 persalinan), tahun 2013 sebanyak 225 kasus (1.811 persalinan) dan tahun 2014 sampai dengan bulan September sebanyak 180 kasus (1.316 persalinan). Tujuan penelitian ini adalah mengetahui faktor risiko yang berhubungan dengan kejadian preeklampsia pada ibu hamil di RSUD Kabupaten Brebes tahun 2014. Jenis penelitian ini adalah survey analitik dengan pendekatan case control . Sampel sejumlah 145 orang untuk masing-masing kelompok kasus dan kontrol yang diambil dengan teknik simple random sampling. Analisis data menggunakan uji chi square dengan derajat kemaknaan (α) = 0,05. Hasil penelitian menunujukan bahwa faktor risiko yang berhubungan dengan kejadian preeklampsia adalah umur (p value = 0,0001; OR = 15,731), status gravida (p value = 0,009; OR = 2,173), riwayat keturunan ( p value = 0,033; OR = 2,618), pemeriksaan antenatal ( p value = 0,0001; OR = 17,111), riwayat preeklampsia (p value = 0,0001; OR = 20,529), riwayat hipertensi ( p value = 0,0001; OR = 6,026). Variabel yang tidak berhubungan adalah jenis pekerjaan, tingkat pendidikan, riwayat diabetes mellitus, dan riwayat kehamilan ganda. Abstract The incidence of preeclampsia in Brebes District was increasing from year to year. In 2011 there were 215 cases (1,547 births), in 2012 there were 170 cases (1,957 births), in 2013 there were 225 cases (1,811 births) and until September 2014 there were 180 cases (2,316 births). The purpose of this research was to determine the risk factors associated with the incidence of preeclampsia in pregnant women from Brebes district hospital in 2014. This research was an analytical survey with case control approach. The total sample was 145 people for each case and control group which was taken with simple random sampling technique. The data was analyzed using chi-square test with α = 0,05. The results of this research showed that the risk factors associated with the incidence of preeclampsia was age (p value = 0,0001; OR = 15,731), gravida status (p value = 0,009; OR = 2,173), heredity profile (p value = 0,033; OR = 2,618), antenatal examination (p value = 0,0001; OR = 17,111), history of preeclampsia (p value = 0,0001; OR = 20,529), history of hypertension (p value = 0,0001; OR = 6,026). The variables that were not related was the type of work, level of education, history of diabetes mellitus, and history of multiple pregnancy.

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Risk Factors Associated with Peritoneal Involvement in Acute appendicitis in Territory of Punjab, Pakistan

10.53350/pjmhs2115113076 ◽

2021 ◽

Vol 15 (11) ◽

pp. 3076-3077

Author(s):

Fauzia Siraj ◽

Rabbiah Manzoor Malik ◽

Zafar Iqbal ◽

Rifat Shamim ◽

Attya Zaheer ◽

...

Keyword(s):

Risk Factors ◽

Acute Appendicitis ◽

Tertiary Care ◽

Previous History ◽

P Value ◽

Care Hospital ◽

Factors Associated ◽

Time Of Surgery ◽

Number Of Patients ◽

History Of

Aim: To study the frequency and factors associated with peritoneal involvement among patients operated for acute appendicitis in a tertiary care hospital. Place and duration of study: Department of Surgery, Benazir Bhutto Hospital Rawalpindi Pakistan from 1stJuly 2020 to 30thJune 2021. Methodology: This comparative cross-sectional study 500 patients diagnosed as acute appendicitis and operated by consultant surgeon were included. Peritoneal involvement was defined as signs of inflammation or infection on abdominal lining observed by operating surgeon during the time of surgery. Factors like age, gender, presence of comorbid illnesses and history of previous abdominal surgeries were associated with presence of peritoneal involvement. Results: There were 305 (61%) males while 195 (39%) were females with mean age was 32.331±4.544 years.Four hundred and forty two (88.4%) did not show any peritoneal involvement at the time of surgery while 58 (11.6%) had peritoneal involvement. Chi-square test revealed that history of previous abdominal surgeries and advancing age had statistically significant association with peritoneal involvement among the study participants (p-value<0.05). Conclusion: Peritoneal involvement was found in considerable number of patients operated as acute appendicitis by the treating surgeons. Patients with previous history of abdominal surgeries and advancing age were more at risk of having peritoneal involvement in our study. Keywords: Acuteappendicitis, Peritonitis, Risk factors, Frequency

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Risk Factors Associated With Dengue Fever Outbreak in Taiz Governorate, Yemen, 2018: Case-control Study

10.21203/rs.3.rs-624873/v1 ◽

2021 ◽

Author(s):

Abdulkareem Ali Hussein Nassar ◽

Amr Abdulaziz Torbosh ◽

Yassin Abdulmalik Mahyoub ◽

Mohammed Abdullah Al Amad

Keyword(s):

Risk Factors ◽

Dengue Fever ◽

Case Control Study ◽

Significant Risk ◽

Case Fatality ◽

Case Control ◽

Case Definition ◽

P Value ◽

Factors Associated ◽

Control Study

Abstract Background: Dengue Fever (DF) is a significant health problem in Yemen especially in the coastal areas. On November 6, 2018, Taiz governorates surveillance officer notified the Ministry of Public Health and Population on an increase in the number of suspected DF in Al Qahirah and Al Mudhaffar districts, Taiz governorate. On November 7, 2018, Field Epidemiology Training Program sent a team to perform an investigation. The aims were to confirm and describe the outbreak by person, place and time in Taiz governorate, and identify its risk factors.Methodology: Descriptive and case-control study (1:2 ratio) were conducted. WHO case definition was used to identify cases in Al Qahirah or Al Mudhaffar districts during August-November 2018. Control was selected from the same districts who did not suffer from DF. Predesigned questionnaire was used to collect data related to sociodemographic, behavioral and environmental characteristics. Bivariate and multivariate backward stepwise analyses were used. The adjusted odds ratios (aOR) and 95% confidence intervals (95%CI) were calculated. A P value < 0.05 was considered as the cut point for statistically significant. Epi info version 7.2 was used.Results: A total of 50 DF cases were found. Almost 52% were males and 76% were <30 years of age. The overall attack rate was 1/10,000 of the population. Case fatality rate was 4%. In multivariate analysis, not working (aOR = 26.6, 95% CI: 6.8–104.7), not using mosquito repellent (aOR = 13.9, 95% CI:1.4–136.8), wearing short sleeves/pants (aOR = 27.3, 95% CI: 4.8–156.8), poor sanitation (aOR = 5.4, 95% CI: 1.4–20.3), presence of outdoor trees (aOR = 13.2, 95% CI: 2.8–63.0) and houses without window nets (aOR = 15.7, 95% CI: 3.9–63.4) were statistically significant risk factors associated with DF outbreak. Eleven 11 (58%) of blood samples were positive for DF IgM.Conclusions: DF outbreak in Al Qahirah and Al Mudhaffar districts, Taiz governorate was confirmed. This study provides evidence-based information regarding the identified risk factors that contributed to the occurrence of this outbreak. Raising community awareness on the importance of personal protection measures and improving the sanitation services are strongly recommended.

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Risk Factors for Community Acquired Extended-Spectrum Β-lactamase (ESBL) Producing Enterobacteriaceae Urinary Tract Infections (UTIs)

Open Forum Infectious Diseases ◽

10.1093/ofid/ofx163.827 ◽

2017 ◽

Vol 4 (suppl_1) ◽

pp. S345-S345

Author(s):

Dheeraj Goyal ◽

Kristin Dascomb ◽

Peter S Jones ◽

Bert K Lopansri

Keyword(s):

Risk Factors ◽

Urinary Tract ◽

Urinary Catheter ◽

Univariate Analysis ◽

Prior History ◽

Factors Associated ◽

Extended Spectrum ◽

History Of ◽

Enterobacteriaceae Infections ◽

Tract Infections

Abstract Background Community-acquired extended-spectrum β-lactamase (ESBL) producing Enterobacteriaceae infections pose unique treatment challenges. Identifying risk factors associated with ESBL Enterobacteriaceae infections outside of prior colonization is important for empiric management in an era of antimicrobial stewardship. Methods We randomly selected 251 adult inpatients admitted to an Intermountain healthcare facility in Utah with an ESBL Enterobacteriaceae urinary tract infection (UTI) between January 1, 2001 and January 1, 2016. 1:1 matched controls had UTI at admission with Enterobacteriaceae but did not produce ESBL. UTI at admission was defined as urine culture positive for > 100,000 colony forming units per milliliter (cfu/mL) of Enterobacteriaceae and positive symptoms within 7 days prior or 2 days after admission. Repeated UTI was defined as more than 3 episodes of UTI within 12 months preceding index hospitalization. Cases with prior history of ESBL Enterobacteriaceae UTIs or another hospitalization three months preceding the index admission were excluded. Univariate and multiple logistic regression techniques were used to identify the risk factors associated with first episode of ESBL Enterobacteriaceae UTI at the time of hospitalization. Results In univariate analysis, history of repeated UTIs, neurogenic bladder, presence of a urinary catheter at time of admission, and prior exposure to outpatient antibiotics within past one month were found to be significantly associated with ESBL Enterobacteriaceae UTIs. When controlling for age differences, severity of illness and co-morbid conditions, history of repeated UTIs (adjusted odds ratio (AOR) 6.76, 95% confidence interval (CI) 3.60–13.41), presence of a urinary catheter at admission (AOR 2.75, 95% CI 1.25 – 6.24) and prior antibiotic exposure (AOR: 8.50, 95% CI: 3.09 – 30.13) remained significantly associated with development of new ESBL Enterobacteriaceae UTIs. Conclusion Patients in the community with urinary catheters, history of recurrent UTIs, or recent antimicrobial use can develop de novo ESBL Enterobacteriaceae UTIs. Disclosures All authors: No reported disclosures.

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Risk factors associated with early childhood caries – a case control study

Revista Odonto Ciência ◽

10.15448/198-6523.2016.2.21496 ◽

2016 ◽

Vol 31 (2) ◽

pp. 83

Author(s):

Marina De Deus Moura Lima ◽

Zacarias Soares Brito-Neto ◽

Heylane Oliveira Amaral ◽

Cacilda Castelo Branco Lima ◽

Marcoeli Silva de Moura ◽

...

Keyword(s):

Risk Factors ◽

Early Childhood ◽

Early Childhood Caries ◽

Case Control Study ◽

Case Control ◽

Control Group ◽

Factors Associated ◽

History Of ◽

Control Study ◽

Childhood Caries

Objective: The aim of this study was to determine the risk factors associated with early childhood caries (ECC).Methods: It was an observational retrospective case-control study. The case group consisted of all patients diagnosed with ECC in the records of an active program of maternal and child care. The control group was composed of an equal number of children, matched for gender and age, who attended the program and did not have ECC. The process of data collection consisted of completing a pre-established schedule to analyse variables related to the mother/caregiver and child.Statisticalanalysis was performed using the chi-squared and odds ratio (OR), with alpha (α) = 0.05.Results: History of caries in the mother (OR=2.61; CI 95%=1.45-4.67) and father (OR=1.72; CI 95%=1.02-2.89) were key determinants in the child being diagnosed with ECC.Conclusions: The risk factors associated with ECC were the following: no oral hygiene acceptance, nocturnal feeding duration of more than 16 months, a daily intake of sugar greater than 4 times a day, a Baume type II maxillary arch, fewer than 3 consultations with the program, and a history of decay in the parents.

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945. Prevalence of HIV Associated Non-AIDS Conditions and Associated Risk Factors among Hospitalized HIV-infected Patients in India

Open Forum Infectious Diseases ◽

10.1093/ofid/ofaa439.1131 ◽

2020 ◽

Vol 7 (Supplement_1) ◽

pp. S504-S505

Author(s):

Amyeo A Jereen ◽

Celia Kucera ◽

Saniya Pervin ◽

Muralidhar Varma ◽

Radhakrishnan Rajesh ◽

...

Keyword(s):

Risk Factors ◽

Transmitted Disease ◽

Multivariate Logistic Regression Analysis ◽

Patient Risk ◽

Sexually Transmitted ◽

Factors Associated ◽

Immunodeficiency Virus ◽

History Of ◽

Artery Disease ◽

Associated Risk Factors

Abstract Background HIV-associated non-AIDS (HANA) conditions are becoming common as People Living with Human Immunodeficiency Virus (PLWHIV) age. However, data estimating the prevalence of HANA conditions and associated risk factors is lacking in developing countries. This study evaluates reasons for hospitalizations among PLWHIV in Udupi, India in the antiretroviral era, and describes associated risk factors. Methods Demographic and clinical data were extracted from medical charts of 1280 HIV-infected patients 18 years and older who were admitted to Kasturba Hospital, Manipal, India between January 1, 2013 and December 31, 2017, for a total of 2157 hospitalizations. Primary reasons for hospitalization were categorized into AIDS-defining vs Non-AIDS-defining and HANA vs Non-HANA conditions (Fig 1). Multivariate logistic regression analysis was performed to estimate demographic and clinical factors associated with hospitalizations due to AIDS-defining illness and HANA conditions. Categorization of Reasons for Hospitalization Results Patients’ median age was 45 (18-80) years; 70% male. Median age of patients with AIDS-defining illness (45% of hospitalizations) was lower at 44 (18-75) years compared with HANA (15% of hospitalizations) at 48 (21-80) years. Age (OR, 95% CI) (0.985, 0.974-0.995), admission CD4 (0.998, 0.997 - 0.998), history of hypertension (HTN) (0.59, 0.42-0.82), stroke (0.49, 0.24 - 0.93), diabetes (1.56, 1.10 - 2.19), and AIDS-defining cancers (1.74, 1.05 - 2.89) were associated with AIDS-defining hospitalizations (Fig 2). Additionally, age (1.016, 1.001 - 1.031), history of HTN (1.70, 1.16 - 2.46), coronary artery disease (CAD) (4.02, 1.87- 9.02), chronic kidney disease (CKD) (2.30, 1.15 - 4.61), stroke (2.93, 1.46 - 5.96), Hepatitis B (3.32, 1.66- 6.72), Hepatitis C (16.1, 2.84 - 314), sexually transmitted disease (STD) (3.76, 1.38- 10.8), and HANA-associated cancer (2.44, 1.28- 6.42) were associated with HANA hospitalizations (Fig 3). Patient Risk Factors for AIDS-related Hospitalization Patient Risk Factors for HANA-related Hospitalization Conclusion Prevalence of HANA conditions was lower than AIDS-defining illnesses possibly because of a younger population. Patients with AIDS-defining illnesses were also likely to have HANA conditions. Early detection and effective treatment of both HIV and HANA conditions is essential to decrease hospitalizations in low-resource settings. Disclosures All Authors: No reported disclosures

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Epidemiological characteristics, clinical characteristics, and prognostic factors of children with atopy hospitalised with adenovirus pneumonia

BMC Infectious Diseases ◽

10.1186/s12879-021-06741-0 ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Miao Li ◽

Xiao-Hua Han ◽

Li-Yun Liu ◽

Hui-Sheng Yao ◽

Li-Li Yi

Keyword(s):

Risk Factors ◽

Disease Severity ◽

Clinical Characteristics ◽

Severe Infection ◽

Small Airway ◽

Personal History ◽

Factors Associated ◽

History Of ◽

Radiological Changes ◽

Epidemiological Characteristics

Abstract Background Atopy may be associated with disease severity and a poor prognosis of human adenovirus (HAdV) pneumonia in children. Our aim was to observe the clinical characteristics and pulmonary radiological changes in children with atopy and HAdV pneumonia in China. Methods Children hospitalised with HAdV pneumonia from June 2018 to December 2019 were analysed. All children were divided into atopic with HAdV, non-atopic with HAdV, and atopic without HAdV infection group. Each group was further divided into the mild and severe pneumonia groups according to disease severity. Standard treatment was initiated after admission, and regular follow-up evaluations were conducted at 1 month after discharge. Baseline and clinical characteristics and pulmonary radiological changes in children with and without atopy were evaluated. Risk factors associated with small airway lesions in patients with HAdV pneumonia were analysed. Results The eosinophil count in the atopic group was significantly higher than that in the non-atopic group (P < 0.05). Severe coughing, wheezing, and small airway lesions on chest high-resolution computed tomography (HRCT) upon admission, after discharge and 1 month after discharge were significantly higher in the atopic group (with or without HAdV infection) than in the non-atopic group (P < 0.05). There were significant differences in the number of patients with wheezing and small airway lesions during hospitalisation and after discharge among the three groups (P < 0.05). The risks of small airway lesions in children with a family or personal history of asthma, severe infection, atopy, and HAdV infection were 2.1-, 2.7-, 1.9-, 2.1-, and 1.4-times higher than those in children without these characteristics, respectively. Conclusions Children with atopy and HAdV pneumonia may experience severe coughing in mild cases and wheezing in mild and severe cases. Children with atopy are more susceptible to the development of small airway lesions, recurrent wheezing after discharge and slower recovery of small airway lesions as observed on pulmonary imaging than non-atopic children after HAdV infection. A family or personal history of asthma, atopy, severe infection, and HAdV infection are independent risk factors associated with the development of small airway lesion as observed on chest HRCT.

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